/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:51:56,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:51:56,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:51:56,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:51:56,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:51:56,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:51:56,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:51:56,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:51:56,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:51:56,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:51:56,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:51:56,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:51:56,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:51:56,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:51:57,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:51:57,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:51:57,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:51:57,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:51:57,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:51:57,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:51:57,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:51:57,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:51:57,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:51:57,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:51:57,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 00:51:57,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:51:57,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:51:57,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:51:57,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 00:51:57,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:51:57,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:51:57,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:51:57,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:51:57,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:51:57,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:51:57,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:51:57,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:51:57,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:51:57,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:51:57,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:51:57,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:51:57,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:51:57,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:51:57,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:51:57,101 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:51:57,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:51:57,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:51:57,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:51:57,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:51:57,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:51:57,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:51:57,102 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 00:51:57,102 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 00:51:57,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:51:57,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:51:57,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:51:57,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:51:57,565 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:51:57,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2021-02-22 00:51:57,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b3f455c/3031339d78d240958abaf645fd402055/FLAG740718e45 [2021-02-22 00:51:58,295 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:51:58,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2021-02-22 00:51:58,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b3f455c/3031339d78d240958abaf645fd402055/FLAG740718e45 [2021-02-22 00:51:58,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b3f455c/3031339d78d240958abaf645fd402055 [2021-02-22 00:51:58,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:51:58,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:51:58,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:51:58,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:51:58,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:51:58,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:51:58" (1/1) ... [2021-02-22 00:51:58,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f70c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:58, skipping insertion in model container [2021-02-22 00:51:58,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:51:58" (1/1) ... [2021-02-22 00:51:58,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:51:58,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:51:59,050 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c[16717,16730] [2021-02-22 00:51:59,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:51:59,076 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:51:59,206 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c[16717,16730] [2021-02-22 00:51:59,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:51:59,263 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:51:59,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59 WrapperNode [2021-02-22 00:51:59,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:51:59,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:51:59,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:51:59,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:51:59,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... [2021-02-22 00:51:59,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:51:59,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:51:59,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:51:59,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:51:59,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:51:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:51:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:51:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 00:51:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:51:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-22 00:51:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-22 00:51:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 00:51:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 00:51:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 00:51:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 00:51:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 00:51:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 00:51:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 00:51:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 00:51:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 00:51:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:51:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 00:51:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 00:51:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 00:51:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 00:51:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 00:51:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 00:51:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 00:51:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 00:51:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 00:51:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 00:51:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 00:51:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 00:51:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 00:51:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 00:51:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 00:51:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 00:51:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 00:51:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 00:51:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:51:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:51:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:51:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:51:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:51:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-22 00:51:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:51:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 00:51:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 00:51:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 00:51:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 00:51:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 00:51:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 00:51:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 00:51:59,582 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-22 00:51:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 00:51:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 00:51:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 00:51:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 00:51:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 00:51:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 00:51:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 00:51:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 00:51:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:51:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:51:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:51:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:52:00,988 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:52:00,989 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 00:52:00,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:52:00 BoogieIcfgContainer [2021-02-22 00:52:00,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:52:00,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:52:00,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:52:00,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:52:00,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:51:58" (1/3) ... [2021-02-22 00:52:00,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df2bb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:52:00, skipping insertion in model container [2021-02-22 00:52:00,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:51:59" (2/3) ... [2021-02-22 00:52:00,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df2bb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:52:00, skipping insertion in model container [2021-02-22 00:52:00,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:52:00" (3/3) ... [2021-02-22 00:52:01,000 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2021-02-22 00:52:01,007 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:52:01,013 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:52:01,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:52:01,054 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:52:01,055 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:52:01,055 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 00:52:01,055 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:52:01,055 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:52:01,055 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:52:01,055 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:52:01,056 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:52:01,078 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2021-02-22 00:52:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-22 00:52:01,098 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:01,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:01,100 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:01,106 INFO L82 PathProgramCache]: Analyzing trace with hash 219928465, now seen corresponding path program 1 times [2021-02-22 00:52:01,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:01,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775999869] [2021-02-22 00:52:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:01,183 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,836 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:01,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:01,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:01,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:02,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:02,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:02,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:52:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:02,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:02,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:02,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 00:52:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:02,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:02,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:02,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775999869] [2021-02-22 00:52:02,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:02,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 00:52:02,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739026213] [2021-02-22 00:52:02,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 00:52:02,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:02,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 00:52:02,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:52:02,110 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2021-02-22 00:52:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:03,610 INFO L93 Difference]: Finished difference Result 474 states and 558 transitions. [2021-02-22 00:52:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 00:52:03,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-22 00:52:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:03,628 INFO L225 Difference]: With dead ends: 474 [2021-02-22 00:52:03,628 INFO L226 Difference]: Without dead ends: 305 [2021-02-22 00:52:03,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:52:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-02-22 00:52:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 258. [2021-02-22 00:52:03,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-02-22 00:52:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 279 transitions. [2021-02-22 00:52:03,843 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 279 transitions. Word has length 153 [2021-02-22 00:52:03,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:03,846 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 279 transitions. [2021-02-22 00:52:03,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 00:52:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 279 transitions. [2021-02-22 00:52:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-22 00:52:03,862 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:03,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:03,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:52:03,864 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:03,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1788341931, now seen corresponding path program 1 times [2021-02-22 00:52:03,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:03,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303925443] [2021-02-22 00:52:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:03,872 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:03,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:03,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:03,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:03,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:03,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:03,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,345 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-22 00:52:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 00:52:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:04,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:04,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:04,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303925443] [2021-02-22 00:52:04,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:04,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 00:52:04,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353777098] [2021-02-22 00:52:04,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 00:52:04,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:04,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 00:52:04,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 00:52:04,490 INFO L87 Difference]: Start difference. First operand 258 states and 279 transitions. Second operand 5 states. [2021-02-22 00:52:05,320 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:06,440 INFO L93 Difference]: Finished difference Result 402 states and 452 transitions. [2021-02-22 00:52:06,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 00:52:06,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-22 00:52:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:06,446 INFO L225 Difference]: With dead ends: 402 [2021-02-22 00:52:06,446 INFO L226 Difference]: Without dead ends: 294 [2021-02-22 00:52:06,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-22 00:52:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-22 00:52:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 248. [2021-02-22 00:52:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-02-22 00:52:06,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 266 transitions. [2021-02-22 00:52:06,545 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 266 transitions. Word has length 154 [2021-02-22 00:52:06,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:06,546 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 266 transitions. [2021-02-22 00:52:06,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 00:52:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 266 transitions. [2021-02-22 00:52:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-22 00:52:06,548 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:06,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:06,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 00:52:06,549 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash -349760789, now seen corresponding path program 1 times [2021-02-22 00:52:06,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:06,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392837048] [2021-02-22 00:52:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:06,554 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:06,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:06,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:06,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:06,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:06,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:06,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:06,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:06,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:06,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:06,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,141 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:07,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:52:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:07,408 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 00:52:07,410 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 00:52:07,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 00:52:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-22 00:52:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:07,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:07,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:07,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392837048] [2021-02-22 00:52:07,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:07,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:52:07,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372927889] [2021-02-22 00:52:07,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:52:07,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:07,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:52:07,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:52:07,549 INFO L87 Difference]: Start difference. First operand 248 states and 266 transitions. Second operand 10 states. [2021-02-22 00:52:08,155 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:08,637 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:09,022 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:52:09,426 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:09,805 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:10,168 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:11,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:11,727 INFO L93 Difference]: Finished difference Result 422 states and 478 transitions. [2021-02-22 00:52:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 00:52:11,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2021-02-22 00:52:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:11,736 INFO L225 Difference]: With dead ends: 422 [2021-02-22 00:52:11,736 INFO L226 Difference]: Without dead ends: 294 [2021-02-22 00:52:11,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-22 00:52:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-22 00:52:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 248. [2021-02-22 00:52:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-02-22 00:52:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 265 transitions. [2021-02-22 00:52:11,894 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 265 transitions. Word has length 163 [2021-02-22 00:52:11,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:11,895 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 265 transitions. [2021-02-22 00:52:11,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:52:11,896 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 265 transitions. [2021-02-22 00:52:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-22 00:52:11,898 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:11,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:11,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 00:52:11,899 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:11,900 INFO L82 PathProgramCache]: Analyzing trace with hash -337129330, now seen corresponding path program 1 times [2021-02-22 00:52:11,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:11,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455494999] [2021-02-22 00:52:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:11,904 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,413 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:12,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:52:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:12,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-22 00:52:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-22 00:52:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:12,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:12,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:12,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455494999] [2021-02-22 00:52:12,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:12,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 00:52:12,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481188765] [2021-02-22 00:52:12,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 00:52:12,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:12,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 00:52:12,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-22 00:52:12,683 INFO L87 Difference]: Start difference. First operand 248 states and 265 transitions. Second operand 7 states. [2021-02-22 00:52:13,338 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:14,992 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:15,808 INFO L93 Difference]: Finished difference Result 552 states and 633 transitions. [2021-02-22 00:52:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 00:52:15,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2021-02-22 00:52:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:15,818 INFO L225 Difference]: With dead ends: 552 [2021-02-22 00:52:15,818 INFO L226 Difference]: Without dead ends: 424 [2021-02-22 00:52:15,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-02-22 00:52:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-02-22 00:52:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 353. [2021-02-22 00:52:16,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2021-02-22 00:52:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 382 transitions. [2021-02-22 00:52:16,029 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 382 transitions. Word has length 171 [2021-02-22 00:52:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:16,029 INFO L480 AbstractCegarLoop]: Abstraction has 353 states and 382 transitions. [2021-02-22 00:52:16,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 00:52:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 382 transitions. [2021-02-22 00:52:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-22 00:52:16,033 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:16,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:16,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 00:52:16,033 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:16,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1594685458, now seen corresponding path program 1 times [2021-02-22 00:52:16,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:16,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905219622] [2021-02-22 00:52:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:16,038 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,437 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:16,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:16,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:16,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:52:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:16,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-22 00:52:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-22 00:52:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:16,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:16,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:16,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905219622] [2021-02-22 00:52:16,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:16,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 00:52:16,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832149690] [2021-02-22 00:52:16,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 00:52:16,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 00:52:16,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-22 00:52:16,694 INFO L87 Difference]: Start difference. First operand 353 states and 382 transitions. Second operand 13 states. [2021-02-22 00:52:17,391 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:17,761 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:52:18,130 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:18,504 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:18,867 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:19,835 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:20,248 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:20,641 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:21,033 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:21,398 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:22,599 INFO L93 Difference]: Finished difference Result 662 states and 760 transitions. [2021-02-22 00:52:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 00:52:22,599 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2021-02-22 00:52:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:22,603 INFO L225 Difference]: With dead ends: 662 [2021-02-22 00:52:22,603 INFO L226 Difference]: Without dead ends: 429 [2021-02-22 00:52:22,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-22 00:52:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-02-22 00:52:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 359. [2021-02-22 00:52:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2021-02-22 00:52:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 388 transitions. [2021-02-22 00:52:22,781 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 388 transitions. Word has length 195 [2021-02-22 00:52:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:22,782 INFO L480 AbstractCegarLoop]: Abstraction has 359 states and 388 transitions. [2021-02-22 00:52:22,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 00:52:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 388 transitions. [2021-02-22 00:52:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-22 00:52:22,785 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:22,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:22,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 00:52:22,786 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1278040974, now seen corresponding path program 1 times [2021-02-22 00:52:22,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:22,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917567207] [2021-02-22 00:52:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:22,790 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:22,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:22,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:22,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,234 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:23,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:52:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-22 00:52:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:23,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:23,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-22 00:52:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:23,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:23,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:23,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917567207] [2021-02-22 00:52:23,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:23,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:52:23,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445613690] [2021-02-22 00:52:23,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:52:23,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:23,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:52:23,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:52:23,458 INFO L87 Difference]: Start difference. First operand 359 states and 388 transitions. Second operand 10 states. [2021-02-22 00:52:24,130 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:25,623 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:26,013 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:26,474 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:26,834 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:27,580 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:27,951 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:28,319 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:28,811 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:29,927 INFO L93 Difference]: Finished difference Result 901 states and 1048 transitions. [2021-02-22 00:52:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-22 00:52:29,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2021-02-22 00:52:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:29,934 INFO L225 Difference]: With dead ends: 901 [2021-02-22 00:52:29,934 INFO L226 Difference]: Without dead ends: 662 [2021-02-22 00:52:29,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-02-22 00:52:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-02-22 00:52:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 552. [2021-02-22 00:52:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2021-02-22 00:52:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 602 transitions. [2021-02-22 00:52:30,160 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 602 transitions. Word has length 195 [2021-02-22 00:52:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:30,161 INFO L480 AbstractCegarLoop]: Abstraction has 552 states and 602 transitions. [2021-02-22 00:52:30,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:52:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 602 transitions. [2021-02-22 00:52:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:52:30,165 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:30,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:30,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 00:52:30,165 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:30,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1563246803, now seen corresponding path program 1 times [2021-02-22 00:52:30,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:30,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536807315] [2021-02-22 00:52:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:30,170 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,592 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:30,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:52:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-22 00:52:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-22 00:52:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-22 00:52:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:30,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:30,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:30,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:30,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536807315] [2021-02-22 00:52:30,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:30,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:52:30,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608752158] [2021-02-22 00:52:30,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:52:30,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:30,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:52:30,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:52:30,802 INFO L87 Difference]: Start difference. First operand 552 states and 602 transitions. Second operand 11 states. [2021-02-22 00:52:31,425 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:33,152 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:33,523 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:33,992 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:35,139 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:35,514 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:35,937 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:36,328 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:36,695 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:37,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:37,060 INFO L93 Difference]: Finished difference Result 1155 states and 1330 transitions. [2021-02-22 00:52:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-22 00:52:37,061 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2021-02-22 00:52:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:37,069 INFO L225 Difference]: With dead ends: 1155 [2021-02-22 00:52:37,070 INFO L226 Difference]: Without dead ends: 723 [2021-02-22 00:52:37,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2021-02-22 00:52:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-02-22 00:52:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 550. [2021-02-22 00:52:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-22 00:52:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 598 transitions. [2021-02-22 00:52:37,373 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 598 transitions. Word has length 200 [2021-02-22 00:52:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:37,374 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 598 transitions. [2021-02-22 00:52:37,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:52:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 598 transitions. [2021-02-22 00:52:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-02-22 00:52:37,376 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:37,377 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:37,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 00:52:37,377 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:37,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:37,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1123527417, now seen corresponding path program 1 times [2021-02-22 00:52:37,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:37,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766215867] [2021-02-22 00:52:37,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:37,382 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,761 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:37,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:52:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-22 00:52:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:37,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:37,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:37,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:37,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:37,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:52:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-22 00:52:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-22 00:52:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:37,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:37,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:38,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766215867] [2021-02-22 00:52:38,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:38,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 00:52:38,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661657823] [2021-02-22 00:52:38,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 00:52:38,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:38,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 00:52:38,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:52:38,006 INFO L87 Difference]: Start difference. First operand 550 states and 598 transitions. Second operand 11 states. [2021-02-22 00:52:39,464 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:52:39,842 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:52:40,254 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 00:52:40,639 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:41,032 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:41,399 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:52:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:42,879 INFO L93 Difference]: Finished difference Result 1167 states and 1363 transitions. [2021-02-22 00:52:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 00:52:42,880 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2021-02-22 00:52:42,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:42,885 INFO L225 Difference]: With dead ends: 1167 [2021-02-22 00:52:42,885 INFO L226 Difference]: Without dead ends: 737 [2021-02-22 00:52:42,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-22 00:52:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-02-22 00:52:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 566. [2021-02-22 00:52:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2021-02-22 00:52:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 614 transitions. [2021-02-22 00:52:43,145 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 614 transitions. Word has length 223 [2021-02-22 00:52:43,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:43,146 INFO L480 AbstractCegarLoop]: Abstraction has 566 states and 614 transitions. [2021-02-22 00:52:43,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 00:52:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 614 transitions. [2021-02-22 00:52:43,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-02-22 00:52:43,150 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:43,150 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:43,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 00:52:43,151 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:43,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1942855062, now seen corresponding path program 1 times [2021-02-22 00:52:43,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:43,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208999654] [2021-02-22 00:52:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:43,155 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:43,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:43,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:43,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:43,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:52:43,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,591 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:43,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:52:43,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-22 00:52:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-22 00:52:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:43,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:52:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-22 00:52:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-22 00:52:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:43,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:43,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:43,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208999654] [2021-02-22 00:52:43,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:43,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 00:52:43,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050849501] [2021-02-22 00:52:43,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 00:52:43,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:43,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 00:52:43,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-22 00:52:43,839 INFO L87 Difference]: Start difference. First operand 566 states and 614 transitions. Second operand 8 states. [2021-02-22 00:52:44,512 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:45,359 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:52:47,997 INFO L93 Difference]: Finished difference Result 1638 states and 1956 transitions. [2021-02-22 00:52:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-22 00:52:47,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2021-02-22 00:52:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:52:48,005 INFO L225 Difference]: With dead ends: 1638 [2021-02-22 00:52:48,005 INFO L226 Difference]: Without dead ends: 1192 [2021-02-22 00:52:48,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2021-02-22 00:52:48,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-02-22 00:52:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 960. [2021-02-22 00:52:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2021-02-22 00:52:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1070 transitions. [2021-02-22 00:52:48,427 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1070 transitions. Word has length 223 [2021-02-22 00:52:48,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:52:48,427 INFO L480 AbstractCegarLoop]: Abstraction has 960 states and 1070 transitions. [2021-02-22 00:52:48,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 00:52:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1070 transitions. [2021-02-22 00:52:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-02-22 00:52:48,431 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:52:48,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:52:48,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 00:52:48,431 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:52:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:52:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -945017396, now seen corresponding path program 1 times [2021-02-22 00:52:48,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:52:48,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210228573] [2021-02-22 00:52:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:52:48,435 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:52:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:48,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:48,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:52:48,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,816 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:52:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:52:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-22 00:52:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-22 00:52:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-22 00:52:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:48,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:48,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-22 00:52:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-22 00:52:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 00:52:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:52:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 00:52:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:52:48,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:52:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:52:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:48,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:48,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:48,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:52:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,004 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:52:49,005 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:52:49,030 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-22 00:52:49,031 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-22 00:52:49,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 00:52:49,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 00:52:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:49,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:49,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:49,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-22 00:52:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:49,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:52:49,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-22 00:52:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-22 00:52:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-02-22 00:52:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:52:49,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:52:49,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:52:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:52:49,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210228573] [2021-02-22 00:52:49,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:52:49,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-22 00:52:49,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413840545] [2021-02-22 00:52:49,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-22 00:52:49,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:52:49,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-22 00:52:49,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2021-02-22 00:52:49,337 INFO L87 Difference]: Start difference. First operand 960 states and 1070 transitions. Second operand 21 states. [2021-02-22 00:52:50,052 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:50,575 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:52:51,001 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 00:52:51,485 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:51,942 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:52:52,340 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:53,521 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:52:55,077 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:55,527 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:56,071 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:56,539 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:56,945 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:57,369 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:57,755 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:58,189 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:58,646 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:52:59,160 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:52:59,585 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 00:53:00,052 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-22 00:53:00,972 WARN L202 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-22 00:53:01,882 WARN L202 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2021-02-22 00:53:02,714 WARN L202 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-22 00:53:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:53:05,093 INFO L93 Difference]: Finished difference Result 1984 states and 2297 transitions. [2021-02-22 00:53:05,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-02-22 00:53:05,094 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 228 [2021-02-22 00:53:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:53:05,104 INFO L225 Difference]: With dead ends: 1984 [2021-02-22 00:53:05,104 INFO L226 Difference]: Without dead ends: 1144 [2021-02-22 00:53:05,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=726, Invalid=3056, Unknown=0, NotChecked=0, Total=3782 [2021-02-22 00:53:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2021-02-22 00:53:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 923. [2021-02-22 00:53:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2021-02-22 00:53:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1017 transitions. [2021-02-22 00:53:05,554 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1017 transitions. Word has length 228 [2021-02-22 00:53:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:53:05,555 INFO L480 AbstractCegarLoop]: Abstraction has 923 states and 1017 transitions. [2021-02-22 00:53:05,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-22 00:53:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1017 transitions. [2021-02-22 00:53:05,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-02-22 00:53:05,559 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:53:05,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:53:05,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 00:53:05,560 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:53:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:53:05,560 INFO L82 PathProgramCache]: Analyzing trace with hash 387000743, now seen corresponding path program 1 times [2021-02-22 00:53:05,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:53:05,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617462788] [2021-02-22 00:53:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:53:05,656 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,694 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,703 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,708 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,758 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:05,768 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:05,772 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:05,775 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:05,777 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,782 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,785 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,789 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,837 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:05,838 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:05,841 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:05,843 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:05,845 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,849 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,851 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,855 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,903 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:05,904 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:05,907 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:05,908 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:05,911 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,914 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,917 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:05,921 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:05,968 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-22 00:53:05,973 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-22 00:53:05,979 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:05,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 00:53:05,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:05,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-22 00:53:05,993 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-22 00:53:05,999 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size [2021-02-22 00:53:06,003 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size 121 [2021-02-22 00:53:06,006 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,009 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,012 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,016 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,063 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-22 00:53:06,065 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-22 00:53:06,067 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:06,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 00:53:06,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:53:06,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-22 00:53:06,078 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-22 00:53:06,083 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size [2021-02-22 00:53:06,087 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size 121 [2021-02-22 00:53:06,089 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,092 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,095 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,098 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,146 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:06,148 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:06,150 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:06,151 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:06,153 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,156 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,159 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,162 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,209 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:06,211 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:06,213 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:06,214 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:06,216 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,219 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,222 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-22 00:53:06,225 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-22 00:53:06,272 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-22 00:53:06,274 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-22 00:53:06,276 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-22 00:53:06,277 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-22 00:53:06,278 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 00:53:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:53:06,370 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:53:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:53:06,485 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:53:06,773 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:53:06,774 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:53:06,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-22 00:53:06,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:53:06 BoogieIcfgContainer [2021-02-22 00:53:06,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:53:06,820 INFO L168 Benchmark]: Toolchain (without parser) took 68214.72 ms. Allocated memory was 179.3 MB in the beginning and 702.5 MB in the end (delta: 523.2 MB). Free memory was 153.6 MB in the beginning and 365.0 MB in the end (delta: -211.4 MB). Peak memory consumption was 312.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:53:06,820 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 179.3 MB. Free memory is still 153.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:53:06,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.30 ms. Allocated memory is still 179.3 MB. Free memory was 152.5 MB in the beginning and 131.9 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:53:06,820 INFO L168 Benchmark]: Boogie Preprocessor took 110.02 ms. Allocated memory is still 179.3 MB. Free memory was 131.9 MB in the beginning and 128.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:53:06,821 INFO L168 Benchmark]: RCFGBuilder took 1615.98 ms. Allocated memory was 179.3 MB in the beginning and 219.2 MB in the end (delta: 39.8 MB). Free memory was 128.1 MB in the beginning and 151.9 MB in the end (delta: -23.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:53:06,821 INFO L168 Benchmark]: TraceAbstraction took 65825.69 ms. Allocated memory was 219.2 MB in the beginning and 702.5 MB in the end (delta: 483.4 MB). Free memory was 151.4 MB in the beginning and 365.0 MB in the end (delta: -213.6 MB). Peak memory consumption was 269.8 MB. Max. memory is 8.0 GB. [2021-02-22 00:53:06,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 179.3 MB. Free memory is still 153.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 640.30 ms. Allocated memory is still 179.3 MB. Free memory was 152.5 MB in the beginning and 131.9 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.02 ms. Allocated memory is still 179.3 MB. Free memory was 131.9 MB in the beginning and 128.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1615.98 ms. Allocated memory was 179.3 MB in the beginning and 219.2 MB in the end (delta: 39.8 MB). Free memory was 128.1 MB in the beginning and 151.9 MB in the end (delta: -23.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65825.69 ms. Allocated memory was 219.2 MB in the beginning and 702.5 MB in the end (delta: 483.4 MB). Free memory was 151.4 MB in the beginning and 365.0 MB in the end (delta: -213.6 MB). Peak memory consumption was 269.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 832]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; [L911] int retValue_acc ; [L912] int tmp ; [L916] FCALL select_helpers() [L917] FCALL select_features() [L918] CALL, EXPR valid_product() [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); [L918] RET, EXPR valid_product() [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) [L922] FCALL setup() [L923] CALL runTest() [L904] CALL __utac_acc__Specification2_spec__1() [L50] methAndRunningLastTime = 0 [L904] RET __utac_acc__Specification2_spec__1() [L905] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND TRUE \read(tmp) [L747] CALL waterRise() [L648] COND TRUE waterLevel < 2 [L649] waterLevel = waterLevel + 1 [L747] RET waterRise() [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L464] COND FALSE !(\read(pumpRunning)) [L471] COND TRUE \read(systemActive) [L473] CALL processEnvironment() [L493] int tmp ; [L496] COND TRUE ! pumpRunning [L498] CALL, EXPR isHighWaterLevel() [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L614] CALL, EXPR isHighWaterSensorDry() [L710] int retValue_acc ; [L713] COND FALSE !(waterLevel < 2) [L717] retValue_acc = 0 [L718] return (retValue_acc); [L614] RET, EXPR isHighWaterSensorDry() [L614] tmp = isHighWaterSensorDry() [L616] COND FALSE !(\read(tmp)) [L619] tmp___0 = 1 [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); [L498] RET, EXPR isHighWaterLevel() [L498] tmp = isHighWaterLevel() [L500] COND TRUE \read(tmp) [L502] CALL activatePump() [L527] int tmp ; [L531] CALL, EXPR isMethaneAlarm() [L552] int retValue_acc ; [L556] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] retValue_acc = isMethaneLevelCritical() [L558] return (retValue_acc); [L531] RET, EXPR isMethaneAlarm() [L531] tmp = isMethaneAlarm() [L533] COND FALSE !(\read(tmp)) [L537] CALL activatePump__wrappee__highWaterSensor() [L521] pumpRunning = 1 [L537] RET activatePump__wrappee__highWaterSensor() [L502] RET activatePump() [L473] RET processEnvironment() [L479] CALL __utac_acc__Specification2_spec__2() [L55] int tmp ; [L56] int tmp___0 ; [L60] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L60] RET, EXPR isMethaneLevelCritical() [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 [L479] RET __utac_acc__Specification2_spec__2() [L778] RET timeShift() [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___0) [L757] CALL changeMethaneLevel() [L660] COND FALSE !(\read(methaneLevelCritical)) [L663] methaneLevelCritical = 1 [L757] RET changeMethaneLevel() [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L464] COND TRUE \read(pumpRunning) [L466] CALL lowerWaterLevel() [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 [L466] RET lowerWaterLevel() [L471] COND TRUE \read(systemActive) [L473] CALL processEnvironment() [L493] int tmp ; [L496] COND FALSE !(! pumpRunning) [L511] FCALL processEnvironment__wrappee__base() [L473] RET processEnvironment() [L479] CALL __utac_acc__Specification2_spec__2() [L55] int tmp ; [L56] int tmp___0 ; [L60] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L60] RET, EXPR isMethaneLevelCritical() [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L64] CALL, EXPR isPumpRunning() [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); [L64] RET, EXPR isPumpRunning() [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) [L67] COND TRUE \read(methAndRunningLastTime) [L69] CALL __automaton_fail() [L832] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 633 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 54.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2555 SDtfs, 6639 SDslu, 6317 SDs, 0 SdLazy, 11542 SolverSat, 1718 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 504 GetRequests, 292 SyntacticMatches, 4 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 31.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=960occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1187 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...